prevent attacks on u.s. troops in afghanistan from local police or service members if the goal to train them? >> well, first of all, i would not -- never stand here and say we can prevent it. there will be, again, this is an enemy tactic. infiltration, radicalization, influence. you know, this is a society that has suffered under conflict for 30-plus years where young men have often settled their grievances with a gun as opposed to a conversation. and so i can't prevent it. i mean, i just -- we've got to be honest about that. but what we can do is we can continue to work to mitigate that risk, and it's a complex issue. it gets at how do they come into the service, we call it vetting. and then it's while they're in the service, how do we, how do we partner with them to establish that level of trust that -- by the way, i mean, i think it's important to note, and the australians came to the same conclusion. it's often, one of the ways you can mitigate the risk is actually by becoming closer to them, not by walking away from them. you can't commute, i mean, this is just a fact, and i've don